442040118 has 48 divisors (see below), whose sum is σ = 963991296. Its totient is φ = 135064800.

The previous prime is 442040117. The next prime is 442040141. The reversal of 442040118 is 811040244.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442040113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151671 + ... + 154557.

It is an arithmetic number, because the mean of its divisors is an integer number (20083152).

Almost surely, 2^442040118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442040118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481995648).

442040118 is an abundant number, since it is smaller than the sum of its proper divisors (521951178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442040118 is a wasteful number, since it uses less digits than its factorization.

442040118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069 (or 3056 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 442040118 is about 21024.7501293119. The cubic root of 442040118 is about 761.7642060162.

The spelling of 442040118 in words is "four hundred forty-two million, forty thousand, one hundred eighteen".